Packaged Thermal OxidizersLine of skid-mounted oxidizers covers a range of 5,000, 10,000, 20,000 and 30,000 scfm. Features include a preassembled, modular design that reduces installation time, 98 percent destruction efficiency; and 95 percent heat exchanger efficiency. The regenerative thermal oxidizer also includes touch-screen controls, a modem for remote monitoring and troubleshooting, and hydraulic actuation.
Pro-Environmental Inc., (909) 989-3010, firstname.lastname@example.org, www.pro-env.com
Regenerative Thermal Oxidizer
Regenerative thermal oxidizer destroys hazardous air pollutants (HAPs), volatile organic compounds (VOCs) and odorous emissions that are discharged from industrial processes. Oxidizer achieves emission destruction through the process of high temperature thermal or catalytic oxidation, converting the pollutants to carbon dioxide and water vapor while reusing the thermal energy generated to reduce operating costs. Once oxidized in the combustion chamber, the hot purified air releases thermal energy as it passes through the media bed in the outlet flow direction. The outlet bed is heated and the gas is cooled so that the outlet gas temperature is only slightly higher than the process inlet temperature. Poppet valves alternate the airflow direction into the media beds to maximize energy recovery within the oxidizer. The high energy recovery within the oxidizers reduces the auxiliary fuel requirement and saves operating cost.
Anguil Environmental Systems, (800) 488-0230, www.anguil.com
Enterprise Il achieves regulatory compliance with a compact two-canister system. Compared to three-column regenerative thermal oxidizer designs, the system operates on longer cycle times, at higher temperatures and with fewer moving parts, according to the manufacturer. It uses engineered ceramic heat exchange media that provides even process air distribution across the column while promoting turbulence. It achieves a standard VOC destruction rate of up to 99 percent.
Megtec Systems, (920) 336-5715, www.megtec.com
Thermal Oxidizers Control Emissions, Save Energy
Company offers regenerative thermal oxidizers and regenerative catalytic oxidizers for VOC control. Used in a range of process industries, the company’s systems have been applied to more than 6 million cfm of process emissions. Designed with proprietary features, GeoTherm and GeoCat are capable of VOC destruction efficiencies of more than 99 percent with minimum energy consumption, according to the company.
Geoenergy Div., A.H. Lundberg Associates Inc., (425) 283-5070, www.geoenergy.com
Rotary ConcentratorDesigned for low concentration, large airflow applications in which the exhaust stream is at or near ambient temperature, the rotary concentrator/regenerative thermal oxidizer system is designed to remove and destroy VOCs and HAPs generated from a facility’s production process. The system performs a multistep process: removal of the VOC/HAP from the process airstream using a hydrophobic Zeolite rotating wheel; desorbing or removing the VOC/HAP from the Zeolite with a reduced airstream; and destruction of the concentrated VOC/HAP using an oxidizer.
CMM Group, (920) 336-9800, www.thecmmgroup.com
VOC Abatement System
Retox provides more than 99 percent VOC control with low-pressure-drop ceramic heat exchangers rated at 95 percent primary heat recovery, providing fuel-free operation at 3 percent LEL and greater inlet VOC loadings. The dual-chamber regenerative thermal oxidizer offers flameless, NOX-free operation with the oxidizer burner only used for initial cold startups. Secondary hot air, chilling and hot oil heat recovery also are feasible for many applications.
Adwest Technologies Inc., (714) 632-9801, www.adwestusa.com
Flexeramic is composed of corrugated ceramic sheets. The structured media elements are vertically aligned in the media bed of a regenerative thermal oxidizer, eliminating horizontal surfaces that can create resistance to vapor flow. According to the manufacturer, the geometric construction reduces vapor channeling and ensures effective contact between the hot gases and the ceramic surface. The lack of horizontal surfaces minimizes the media’s ability to trap particulates from the incoming air and decreases pressure drops across the bed.
Koch Knight LLC, (330) 488-1651, www.kochknight.com